催化臭氧氧化反应塔处理炼油废水  

Treatment of refinery wastewater by catalytic ozone oxidation reaction tower

作　　者：范景福 何庆生 李友臣 曹玉红 FAN Jingfu;HE Qingsheng;LI Youchen;CAO Yuhong(Luoyang R&D Center of Technology,Sinopec Engineering(Group)Co.Ltd.,Luoyang 471003,China)

机构地区：[1]中石化炼化工程(集团)股份有限公司洛阳技术研发中心,河南洛阳471003

出　　处：《化工环保》2022年第2期167-172,共6页Environmental Protection of Chemical Industry

基　　金：中国石油化工股份有限公司项目(319021-10)。

摘　　要：采用催化臭氧氧化反应塔处理炼油废水二级生化出水,分别考察了不同反应塔结构形式和不同催化剂对COD的去除效果,并利用最佳的反应器结构和筛选的催化剂对反应条件进行了优化。实验结果表明:反应器设置内筒,且催化剂填充在内筒中,分别从反应器的顶部和底部进水进气,气液两相在催化剂层逆流通过并发生反应时,处理效果最佳;3号催化剂,即柱状活性炭负载活性金属催化剂Cu-Ce/AC,对臭氧氧化处理炼油废水具有较好的催化活性;在进水pH为7.0~9.0、臭氧投加量为100 mg/(L·h)、停留时间为90 min的最佳反应条件下,出水COD低于40 mg/L,满足后续处理要求。The secondary biochemical effluent of refinery wastewater was treated by using catalytic ozone oxidation reaction tower.The effects of different structures of the reaction tower and different catalysts on COD removal were investigated respectively,and the reaction conditions were optimized by using the best reactor structure and selected catalysts.The experimental results indicate that the optimal removal effects were obtained as the following conditions:an inner tube filled with catalysts is installed in the reactor;water and gas are fed from the top and bottom of the reactor,respectively,and then counter currently flow through and react in the catalyst layer.The 3rd catalyst,namely columnar activated carbon supported active metal catalyst Cu-Ce/AC,demonstrates relatively good catalytic activity to the ozone oxidation treatment of refinery wastewater.Under the optimal reaction conditions of influent pH 7.0-9.0,ozone addition amount 100 mg/(L·h) and retention time 90 min,the effluent COD is lower than 40 mg/L,which meets the subsequent treatment requirements.

关 键 词：炼油废水 催化臭氧氧化 催化剂 反应塔 

分 类 号：X742[环境科学与工程—环境工程]